Given a choice of USB or PS2 mouse, is there anything to choose between them? I'm running Windows XP at present. Walt O'Dowd
USB (Universal Serial Bus) was supposed to kill off old-style mouse, keyboard and printer ports. However, mice generally come with both PS2 and USB connectors, so I still use the PS2 option when it's available. I've found PS2 extremely reliable -- unlike USB -- and at worst, it can free up a USB port for something else.